Be carefull, OP is not the developper. I suggest you contact the developper directly.

https://github.com/no-fee-ethereum-mining/nsfminer

This is the second time I have seen a thread promoting someone else's software. It's the same
pattern: lots of posts with no content, just promisses, and nonsensical responses to technical questions.

There's nothing wrong with the software but be carefull who you donate to.